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Proximity card (or Prox Card) is a generic name for contactless integrated circuit devices used for security access. It can refer to the older 125 kHz devices or the newer…

Many people hesitate to purchase a home alarm, worried they may have to leave their family pet outside in order to arm their alarm system. The concern was that the…

Image sensor is the most important component for any CCTV security camera. This image sensor converts light into a digital signal. The two most basic types today are CCD (Charged…

While there are so many wireless burglar alarm system in the market, the existence of wired burglar alarm system still has its un-parallel value in the market. There are features…

Lenscalc – Online Lens Calculator Lenscalc is a universal tool designed to eliminate the frequent errors, mis-readings, and interpolation problems associated with traditional lens calculators. It provides a streamlined solution…

Most installers of security systems find their works not efficient enough. One dilemma for system installers is you may not be able to grasp accurately if a system is working…

Of course! Please provide the content you’d like me to analyze, and I will carefully examine it while maintaining the original paragraph structure. Cables is a trick for security solution…

Nowadays major burglar alarms provide a dial-out function so owners of the premised guarded can be informed by phone call whenever there is alarm triggered. In occasions, there is no…

Mostly users find there are quite amount of false alarm from PIR motion detectors even those they have been claimed pet immunity. PIR is not so miraculous that can distinguish…